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http://dx.doi.org/10.15269/JKSOEH.2020.30.3.321

Shift Work and Anxiety Symptoms at an Electronic Manufacture Company: The mediating effect of vitamin D and sleep quality  

Chae, Chang Ho (Department of Occupational & Environmental Medicine, Samsung Changwon Hospital, Sungkyunkwan University School of Medicine)
Park, Young Sook (Department of Physical & Rehabilitation Medicine, Samsung Changwon Hospital, Sungkyunkwan University School of Medicine)
Publication Information
Journal of Korean Society of Occupational and Environmental Hygiene / v.30, no.3, 2020 , pp. 321-330 More about this Journal
Abstract
Objectives: The purpose of this study was to compare vitamin D levels, sleep quality, and anxiety symptoms between shift workers and daytime workers and analyze the mediating effect of vitamin D and sleep quality between shift work and anxiety symptoms. Methods: The subjects of the study were 6744 people who received a medical examination while working for an electronics manufacturing company in 2016. We evaluated their shift work, vitamin D levels, sleep quality, and anxiety symptoms with blood samples and questionnaires. Chi-square test, t-test and path statistical analysis were performed. Results: The shift workers had significantly higher symptoms of anxiety than the day workers, significantly lower levels of vitamin D in the blood, and significantly poorer quality of sleep. The results of the pathway analysis confirmed that blood vitamin D and sleep quality had a mediating effect between shift work and anxiety symptoms. Conclusions: Shift workers should be constantly paying attention to mental health effects such as anxiety symptoms. Shift workers should also be alerted of the risk of vitamin D deficiency, encouraged about sun exposure and vitamin D intake, and required to undergo training and counseling on sleep hygiene.
Keywords
Anxiety symptoms; shift work; sleep quality; vitamin D;
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